在精子生成过程中,NAE1介导的化协调了介质重组的无处不在调节和精子生成过程中的介质重组
Yu Xi1,2, Chenjia Gong1,3,4,5,6, Zhe Zhang1,2
1Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.
Theranostics
|March 14, 2025
概括
化-泛化系统通过控制介质重组来调节男性的生育能力. 在精子生成过程中,NAE1介导的化对于适当的交叉形成至关重要,防止不育.
科学领域:
- 生殖生物学 生殖生物学
- 分子遗传学 分子遗传学
- 细胞生物学 细胞生物学
背景情况:
- 介质的同类重组确保了精确的染色体分离和遗传多样性.
- 翻译后修饰 (PTMs) 关键调节介质重组,但机制仍然不完全理解.
- 研究缩激活酶1 (NAE1) 介导的缩提供了对哺乳动物精子生成调节的洞察力.
研究的目的:
- 研究哺乳动物精子生成过程中NAE1介导的缩的调节机制和生理功能.
- 确定NAE1在同源重组中的作用及其对男性不孕不育的影响.
主要方法:
- 免疫光染色和精卵管分期以评估NAE1局部化.
- 精子细胞特异性NaE1淘汰赛小鼠研究NAE1功能.
- 染色体扩散光染色以分析同类突触和重组.
- 单细胞转录基因组学和无处不在基因组学,以确定精子生成缺陷的原因.
主要成果:
- NAE1显示出从包基阶段开始的精子细胞中的高核表达.
- Nae1-淘汰赛的雄性小鼠表现出晚期pachytene停止,亡和不孕症.
- Nae1删除会损害双链断裂修复和交叉形成,破坏介质重组.
- 在介质重组的过程中,Ubiquitination调节与NAE1介导的Neddylation协调.
结论:
- 通过NAE1介导的化调节了化过程中的泛化,影响了交叉分化.
- 无化-无化系统 (NUS) 在哺乳动物精子生成期间的介质重组中起着至关重要的作用.
- 通过NAE1介导的化失调导致精子生成失败和不孕.
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